Loose-leaf binder



061'.. 8, 1929. I w- F.WO\ F 1,731,156

LOOSE LEAF BINDER Filed Febt 24, 192e n YIIIIIIIIIIIIII f5 f4 ATTORNEY WITNESS U l' l IQ uw? Patented Oct. 8, 1929 PATENT y OFFICE WALTER F. WOLF, OF NEW YORK, N. Y.

LOOSE-LEAF BINDER Application filed February 24, 1 928. Serial No. 256,727.

This invention vrelates to loose leaf vbinders and is an improvement over the binder shown and described in my pending application Serial No. 239,587, filed December 12, 1927.

The primary obj ect of the invention resides in a binder in which the binding posts thereof maybe laterally adjusted to accommodate loose leaves irrespective of the spaced relation of the usual openings provided therein and through which the posts pass when the loose leaves are inserted into the binder.

Another object is the provision of a looseleaf binder in which the back cover is hingedly connected to a flat tubular base member which slidably receives post carriers which may be adjusted to various spaced relations by rotatable screws which are respectively key controlled from the opposite ends of base member, while the front cover section 1s hinged to a flat tubular base member in which n carriers are also slidably mounted for supporting the binder locking devices which are engageable with the posts rising from said post carriers and which may be manuallyadjusted for alignment with the post carriers to engage the respective posts.

A further object is to provide a loose-leaf binder which includes all the features provided in the construction of binder shown and described in the above mentioned application, together with a means for laterally adjusting the binding posts and respective locking devices relative to each other.

With these and other objects in view, the invention resides in certain novel construction and combination and` arrangement of parts, the essential features of which are hereinafter 4fully described, arey particularly lpointed out inthe appended claims, and are illustrated in the accompanying drawing, 1n rwhich rFigure l is a vertical transverse sectional view through'my improved binder.

Figure 2 is an enlarged fragmentary vertical transverse sectional view through Athe back tubular base member.

Figure 3 is an enlarged vertical trans-- verse sectional view on the line 3-3 of Figure 1.

Figure 4 is a detail perspective view of one of the screw bearing blocks.

Figure 5 is a detail horizontal sectional View on the line 5-5 of Figure 2.

Referring to the drawings by reference characters, the numeral 10 designates my improved loose-leaf binder in its entirety which includes a back section 11 and a front section 12 between which the loose-leaves to be bound are placed. v

. The back section 11 comprises a flat tubular base strip 13 of a length equal to the width of the binder and to which a rigid back cover 14 is hingedly connected asiat 15. The ends of the base, member are closed by solid caps or plugs 16 while riveted within the member midway between its ends is a bearing block 17 having a groove 18 therein and a notch 19 extending inwardly from one of the side edges toprovide a bifurcation. Journalled in the bearing block 17 are the inner reduced ends of a pair of rotatable screw shafts 20, 2O,VV which reduced ends seat in the groove 18 withtheir extreme ends terminating in the bifurcation or notch 19. Washers 21 are mounted on the reduced ends and abut the inner walls of the notch and the outer sides ofthe bearing blocks while the inner ends of the screw shafts are upset to provide heads which serve to swivelly connect the screw shafts with the bearing blocks. The outer ends of the screw shafts are j ournalled for rotation in the end caps 16 and have their outer squared ends 22 'terminating within recesses 23 provided therein.

The top and bottom walls of the tubular base member 13 are provided with aligned elongated slots 24 while slidably mounted within the tubular member for movement with respect to each other are post carriers 25 having threaded bores 26 for co-action with the threaded screw shafts 20. From the description thus far, it will be understood that upon rotation of either of the screw shafts by applying a key 27 -to the squared end thereof, a turning movement may be manually imparted to the screw shaft which will impart a sliding movement to its related carrier 25. By providing two separate screw shafts, the carriers maybe independently actuated.

The carriers 25 support binding posts 28v l each of which includes a base socket member 29 having a flange 30 which fits between the walls of the slot 24 and upon the top of the carrier 25. The socket member is provided with an internally threaded bore which receives a threaded stud 31 which passes upward through athreaded bore in the carrier. The stud is provided with a square head 32 disposed in a recess 33 in the underside of the carrier and which is of a size to receive the same key 27 used for turning the screws' 20. rlhe key is inserted through the slot 24 in the bottom wall of the tubular member when litting it to either of the studs. 'Ihe binding p-ost is built up from the socket member 29 and embodies a plurality of threadedly connected post sections 34 which are fully explained in my co-pending application above mentioned. It will be seen that each carrier supports a post which is movable therewith and capable of adjustment to various lateral positions with respect to each other yto accommodate the spaced openings 35 in the looseleaves 3G, irrespective of their spaced relation. rthe screws are turned to move the posts to the desired position and the loose leaves 36 placed thereon in the usual manner.

The front section 12 above referred to includes a tubular base member 37 similar to the .tubular base member 13, and to which the front rigid cover 38 is hingedly connected as at 39. The base member 37 is closed at its ends by caps while a partition 41 is riveted within the member midway between its ends to strengthen the walls thereof. The opposed flat walls of the base member 37 are provided with aligned elongated slots 42 to allow for the passage of the binding posts 28.

Slidably mounted within the tubular member on opposite sides of the partition 41 are blocks 43 which support binder locking devices 44. Both of the blocks 43 and locking devices. areV identical so 'that a description of vone will suiiice for the other. The locking devices are fully explained in my co-pending application and include a hollow casing 45 from which a tubular sleeve 46 extends, the same being externally screw threaded for threading engagement with a threaded bore 47 in the block 43. 'Ihe top of the casing is closed by a cover plate 48 having an opening therein for the passage of the post and from which a tongue 49 extends. A slot 50 is provided in the side wall of the easing 45 while a locking vdish 51 is loosely contained within the casing and has a finger 52 extending through the slot for movement over the bottom wall thereof and which bottom wall is beveled inwardly at oneend as at `53. The disk 51 has a central opening 54 therein for the passage of the post `to which the loch is applied. The locking disk is held in an unlocked position when the vfinger 52 is moved to a position in alignment with the tongue 49, as the said linger rests upon the flat bottom wall of the slot and is held in a horizontal position by the finger engaging beneath the tongue. The post is free to slide therethrough but when locking the device, t-he manipulating` linger 52 is pushed from beneath the tongue to the beveled end of the slot which allows the disk to drop to an angular position for jamming engagement with the post as shown at the left of Figurel of the drawings. After the locking devices havey been screwed to their respective Vsliding' blocks, they form an integral part of relative to each other lto suit the leaves to be held. It will be appreciated thatloose-leaves of different sizes have thel post openings at different spaced intervals which requires separate binders therefor, but with my improved binder, it is possible to vinsert sheets in which the post holes may vary as the posts."` may be laterally adjusted yto suit :the 4requirements. I

Vhile I have decribed what I deem to be the most desirable embodiment of .my invention, lit is obvious that many of the details be varied without in any way departing from :the spirit of my invention, and .I therefore do not limit myself to the exact details ofconstruction hereinset vforth nor to anything less than the whole of my invention limited only by the appended claims. l Y

Vhat is claimed as new is f n 1. In a loose-leaf binder, a back cover section includinga tubular base member having an elongated slot therein aligned screw. shafts j ournalled in said ltubular base member carriers threaded to the respective shafts, binding posts rising froml Said carriers, and studs threaded to said carriersand into said binding posts and accessible for removal through said elongated slot.

2. In a loose-leaf binder, a flat tubular member having an ,elongatedY slot therein, carriers slidably mounted in sai,d -tubular member, threaded studs Apassing through said carriers and accessible for removal-through said slot, and binding posts respectively threaded to said studs.

f 3. In a loose-leafbinder, iiat'tubular basegY` member closed at opposite ends, a bea-ring member mounted withinV said base :member midway between the ends thereof, axially aligned screw shafts Ahaving theirinner .ends journalled in saidbearing member and .their nature.

WALTER F. WOLF. 

